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One of the many words that Australians have cut syllables off and replaced with "-o". This one represents the hours after 12pm, and is used by people, myself included, who can't be bothered saying "-fternoon".
Hey Davo, I'm goin' to the servo for arvo smoko.

Translation: David, I'm going to the service station to purchase some food for the afternoon break.
by Choda Boy 57 September 08, 2006
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Arvo is a term used for a douchebag Russians who blame you for everything and try getting people killed. Arvos still gun people who sympathize and care for them and if caught, arvos cry for sister.
by PixlJesus September 13, 2014
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